[amsat-bb] Re: old-sat questions

Graham Shirville g.shirville at btinternet.com
Sun Jan 27 03:14:15 PST 2008

Hi All,

Yes the SSETI Express team would be really delighted to have any reception 
reports as most of the SSETI Express Groundstation network infrastructure 
around Europe has now been redeployed to track other satellites....

The data format one might hear would be one of the following depending on 
bus voltages:

a short, less than one second, burst of 9k6 AX25 telemetry either every 18 
seconds - the Nominal Beacon or

a simple plain carrier Pulse Beacon with 1.6 seconds of CW like transmission 
every 30 or 120 seconds

More details are available here:

Currently however the decoding software appears no longer available for 
download - I will try to see what can be done about that!


Graham Shirville

>> Hi Auke,
>>   If you are listening for supposedly "dead" amateur radio
>> satellites, then you might also want to listen for SSETI
>> Express on 437.250 using NBFM.  SSETI went silent
>> shortly after launch. If it ever wakes up, you should hear
>> 9600 baud data signals on 437.250.  This will sound like
>> white noise - slightly different than static.

More information about the AMSAT-BB mailing list